#ifndef HEADER_X509V3_H
#define HEADER_X509V3_H

#include "bio.h"
#include "x509.h"
#include "conf.h"

#ifdef __cplusplus
extern "C" {
#endif

/* Forward reference */
struct v3_ext_method;
struct v3_ext_ctx;

/* Useful typedefs */

typedef void *(*X509V3_EXT_NEW)(void);
typedef void (*X509V3_EXT_FREE)(void *);
typedef void *(*X509V3_EXT_D2I)(void *, const unsigned char **, long);
typedef int (*X509V3_EXT_I2D)(void *, unsigned char **);
typedef STACK_OF(CONF_VALUE) *
	(*X509V3_EXT_I2V)(struct v3_ext_method *method, void *ext,
			  STACK_OF(CONF_VALUE) * extlist);
typedef void *(*X509V3_EXT_V2I)(struct v3_ext_method *method,
				struct v3_ext_ctx *ctx,
				STACK_OF(CONF_VALUE) * values);
typedef char *(*X509V3_EXT_I2S)(struct v3_ext_method *method, void *ext);
typedef void *(*X509V3_EXT_S2I)(struct v3_ext_method *method,
				struct v3_ext_ctx *ctx, const char *str);
typedef int (*X509V3_EXT_I2R)(struct v3_ext_method *method, void *ext, BIO *out,
			      int indent);
typedef void *(*X509V3_EXT_R2I)(struct v3_ext_method *method,
				struct v3_ext_ctx *ctx, const char *str);

/* V3 extension structure */

struct v3_ext_method {
	int ext_nid;
	int ext_flags;
	/* If this is set the following four fields are ignored */
	ASN1_ITEM_EXP *it;
	/* Old style ASN1 calls */
	X509V3_EXT_NEW ext_new;
	X509V3_EXT_FREE ext_free;
	X509V3_EXT_D2I d2i;
	X509V3_EXT_I2D i2d;

	/* The following pair is used for string extensions */
	X509V3_EXT_I2S i2s;
	X509V3_EXT_S2I s2i;

	/* The following pair is used for multi-valued extensions */
	X509V3_EXT_I2V i2v;
	X509V3_EXT_V2I v2i;

	/* The following are used for raw extensions */
	X509V3_EXT_I2R i2r;
	X509V3_EXT_R2I r2i;

	void *usr_data; /* Any extension specific data */
};

typedef struct X509V3_CONF_METHOD_st {
	char *(*get_string)(void *db, char *section, char *value);
	STACK_OF(CONF_VALUE) * (*get_section)(void *db, char *section);
	void (*free_string)(void *db, char *string);
	void (*free_section)(void *db, STACK_OF(CONF_VALUE) * section);
} X509V3_CONF_METHOD;

/* Context specific info */
struct v3_ext_ctx {
#define CTX_TEST 0x1
	int flags;
	X509 *issuer_cert;
	X509 *subject_cert;
	X509_REQ *subject_req;
	X509_CRL *crl;
	X509V3_CONF_METHOD *db_meth;
	void *db;
	/* Maybe more here */
};

typedef struct v3_ext_method X509V3_EXT_METHOD;

DECLARE_STACK_OF(X509V3_EXT_METHOD)

/* ext_flags values */
#define X509V3_EXT_DYNAMIC 0x1
#define X509V3_EXT_CTX_DEP 0x2
#define X509V3_EXT_MULTILINE 0x4

typedef BIT_STRING_BITNAME ENUMERATED_NAMES;

typedef struct BASIC_CONSTRAINTS_st {
	int ca;
	ASN1_INTEGER *pathlen;
} BASIC_CONSTRAINTS;

typedef struct PKEY_USAGE_PERIOD_st {
	ASN1_GENERALIZEDTIME *notBefore;
	ASN1_GENERALIZEDTIME *notAfter;
} PKEY_USAGE_PERIOD;

typedef struct otherName_st {
	ASN1_OBJECT *type_id;
	ASN1_TYPE *value;
} OTHERNAME;

typedef struct EDIPartyName_st {
	ASN1_STRING *nameAssigner;
	ASN1_STRING *partyName;
} EDIPARTYNAME;

typedef struct GENERAL_NAME_st {
#define GEN_OTHERNAME 0
#define GEN_EMAIL 1
#define GEN_DNS 2
#define GEN_X400 3
#define GEN_DIRNAME 4
#define GEN_EDIPARTY 5
#define GEN_URI 6
#define GEN_IPADD 7
#define GEN_RID 8

	int type;
	union {
		char *ptr;
		OTHERNAME *otherName; /* otherName */
		ASN1_IA5STRING *rfc822Name;
		ASN1_IA5STRING *dNSName;
		ASN1_TYPE *x400Address;
		X509_NAME *directoryName;
		EDIPARTYNAME *ediPartyName;
		ASN1_IA5STRING *uniformResourceIdentifier;
		ASN1_OCTET_STRING *iPAddress;
		ASN1_OBJECT *registeredID;

		/* Old names */
		ASN1_OCTET_STRING *ip; /* iPAddress */
		X509_NAME *dirn; /* dirn */
		ASN1_IA5STRING *
			ia5; /* rfc822Name, dNSName, uniformResourceIdentifier */
		ASN1_OBJECT *rid; /* registeredID */
		ASN1_TYPE *other; /* x400Address */
	} d;
} GENERAL_NAME;

typedef STACK_OF(GENERAL_NAME) GENERAL_NAMES;

typedef struct ACCESS_DESCRIPTION_st {
	ASN1_OBJECT *method;
	GENERAL_NAME *location;
} ACCESS_DESCRIPTION;

typedef STACK_OF(ACCESS_DESCRIPTION) AUTHORITY_INFO_ACCESS;

typedef STACK_OF(ASN1_OBJECT) EXTENDED_KEY_USAGE;

DECLARE_STACK_OF(GENERAL_NAME)
DECLARE_ASN1_SET_OF(GENERAL_NAME)

DECLARE_STACK_OF(ACCESS_DESCRIPTION)
DECLARE_ASN1_SET_OF(ACCESS_DESCRIPTION)

typedef struct DIST_POINT_NAME_st {
	int type;
	union {
		GENERAL_NAMES *fullname;
		STACK_OF(X509_NAME_ENTRY) * relativename;
	} name;
} DIST_POINT_NAME;

typedef struct DIST_POINT_st {
	DIST_POINT_NAME *distpoint;
	ASN1_BIT_STRING *reasons;
	GENERAL_NAMES *CRLissuer;
} DIST_POINT;

typedef STACK_OF(DIST_POINT) CRL_DIST_POINTS;

DECLARE_STACK_OF(DIST_POINT)
DECLARE_ASN1_SET_OF(DIST_POINT)

typedef struct AUTHORITY_KEYID_st {
	ASN1_OCTET_STRING *keyid;
	GENERAL_NAMES *issuer;
	ASN1_INTEGER *serial;
} AUTHORITY_KEYID;

/* Strong extranet structures */

typedef struct SXNET_ID_st {
	ASN1_INTEGER *zone;
	ASN1_OCTET_STRING *user;
} SXNETID;

DECLARE_STACK_OF(SXNETID)
DECLARE_ASN1_SET_OF(SXNETID)

typedef struct SXNET_st {
	ASN1_INTEGER *version;
	STACK_OF(SXNETID) * ids;
} SXNET;

typedef struct NOTICEREF_st {
	ASN1_STRING *organization;
	STACK_OF(ASN1_INTEGER) * noticenos;
} NOTICEREF;

typedef struct USERNOTICE_st {
	NOTICEREF *noticeref;
	ASN1_STRING *exptext;
} USERNOTICE;

typedef struct POLICYQUALINFO_st {
	ASN1_OBJECT *pqualid;
	union {
		ASN1_IA5STRING *cpsuri;
		USERNOTICE *usernotice;
		ASN1_TYPE *other;
	} d;
} POLICYQUALINFO;

DECLARE_STACK_OF(POLICYQUALINFO)
DECLARE_ASN1_SET_OF(POLICYQUALINFO)

typedef struct POLICYINFO_st {
	ASN1_OBJECT *policyid;
	STACK_OF(POLICYQUALINFO) * qualifiers;
} POLICYINFO;

typedef STACK_OF(POLICYINFO) CERTIFICATEPOLICIES;

DECLARE_STACK_OF(POLICYINFO)
DECLARE_ASN1_SET_OF(POLICYINFO)

typedef struct POLICY_MAPPING_st {
	ASN1_OBJECT *issuerDomainPolicy;
	ASN1_OBJECT *subjectDomainPolicy;
} POLICY_MAPPING;

DECLARE_STACK_OF(POLICY_MAPPING)

typedef STACK_OF(POLICY_MAPPING) POLICY_MAPPINGS;

typedef struct GENERAL_SUBTREE_st {
	GENERAL_NAME *base;
	ASN1_INTEGER *minimum;
	ASN1_INTEGER *maximum;
} GENERAL_SUBTREE;

DECLARE_STACK_OF(GENERAL_SUBTREE)

typedef struct NAME_CONSTRAINTS_st {
	STACK_OF(GENERAL_SUBTREE) * permittedSubtrees;
	STACK_OF(GENERAL_SUBTREE) * excludedSubtrees;
} NAME_CONSTRAINTS;

typedef struct POLICY_CONSTRAINTS_st {
	ASN1_INTEGER *requireExplicitPolicy;
	ASN1_INTEGER *inhibitPolicyMapping;
} POLICY_CONSTRAINTS;

/* Proxy certificate structures, see RFC 3820 */
typedef struct PROXY_POLICY_st {
	ASN1_OBJECT *policyLanguage;
	ASN1_OCTET_STRING *policy;
} PROXY_POLICY;

typedef struct PROXY_CERT_INFO_EXTENSION_st {
	ASN1_INTEGER *pcPathLengthConstraint;
	PROXY_POLICY *proxyPolicy;
} PROXY_CERT_INFO_EXTENSION;

DECLARE_ASN1_FUNCTIONS(PROXY_POLICY)
DECLARE_ASN1_FUNCTIONS(PROXY_CERT_INFO_EXTENSION)

#define X509V3_conf_err(val)                                                   \
	ERR_add_error_data(6, "section:", val->section, ",name:", val->name,   \
			   ",value:", val->value);

#define X509V3_set_ctx_test(ctx)                                               \
	X509V3_set_ctx(ctx, NULL, NULL, NULL, NULL, CTX_TEST)
#define X509V3_set_ctx_nodb(ctx) (ctx)->db = NULL;

#define EXT_BITSTRING(nid, table)                                              \
	{                                                                      \
		nid, 0, ASN1_ITEM_ref(ASN1_BIT_STRING), 0, 0, 0, 0, 0, 0,      \
			(X509V3_EXT_I2V)i2v_ASN1_BIT_STRING,                   \
			(X509V3_EXT_V2I)v2i_ASN1_BIT_STRING, NULL, NULL, table \
	}

#define EXT_IA5STRING(nid)                                                     \
	{                                                                      \
		nid, 0, ASN1_ITEM_ref(ASN1_IA5STRING), 0, 0, 0, 0,             \
			(X509V3_EXT_I2S)i2s_ASN1_IA5STRING,                    \
			(X509V3_EXT_S2I)s2i_ASN1_IA5STRING, 0, 0, 0, 0, NULL   \
	}

#define EXT_END                                                                \
	{                                                                      \
		-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0                      \
	}

/* X509_PURPOSE stuff */

#define EXFLAG_BCONS 0x1
#define EXFLAG_KUSAGE 0x2
#define EXFLAG_XKUSAGE 0x4
#define EXFLAG_NSCERT 0x8

#define EXFLAG_CA 0x10
/* Really self issued not necessarily self signed */
#define EXFLAG_SI 0x20
#define EXFLAG_SS 0x20
#define EXFLAG_V1 0x40
#define EXFLAG_INVALID 0x80
#define EXFLAG_SET 0x100
#define EXFLAG_CRITICAL 0x200
#define EXFLAG_PROXY 0x400

#define EXFLAG_INVALID_POLICY 0x800

#define KU_DIGITAL_SIGNATURE 0x0080
#define KU_NON_REPUDIATION 0x0040
#define KU_KEY_ENCIPHERMENT 0x0020
#define KU_DATA_ENCIPHERMENT 0x0010
#define KU_KEY_AGREEMENT 0x0008
#define KU_KEY_CERT_SIGN 0x0004
#define KU_CRL_SIGN 0x0002
#define KU_ENCIPHER_ONLY 0x0001
#define KU_DECIPHER_ONLY 0x8000

#define NS_SSL_CLIENT 0x80
#define NS_SSL_SERVER 0x40
#define NS_SMIME 0x20
#define NS_OBJSIGN 0x10
#define NS_SSL_CA 0x04
#define NS_SMIME_CA 0x02
#define NS_OBJSIGN_CA 0x01
#define NS_ANY_CA (NS_SSL_CA | NS_SMIME_CA | NS_OBJSIGN_CA)

#define XKU_SSL_SERVER 0x1
#define XKU_SSL_CLIENT 0x2
#define XKU_SMIME 0x4
#define XKU_CODE_SIGN 0x8
#define XKU_SGC 0x10
#define XKU_OCSP_SIGN 0x20
#define XKU_TIMESTAMP 0x40
#define XKU_DVCS 0x80

#define X509_PURPOSE_DYNAMIC 0x1
#define X509_PURPOSE_DYNAMIC_NAME 0x2

typedef struct x509_purpose_st {
	int purpose;
	int trust; /* Default trust ID */
	int flags;
	int (*check_purpose)(const struct x509_purpose_st *, const X509 *, int);
	char *name;
	char *sname;
	void *usr_data;
} X509_PURPOSE;

#define X509_PURPOSE_SSL_CLIENT 1
#define X509_PURPOSE_SSL_SERVER 2
#define X509_PURPOSE_NS_SSL_SERVER 3
#define X509_PURPOSE_SMIME_SIGN 4
#define X509_PURPOSE_SMIME_ENCRYPT 5
#define X509_PURPOSE_CRL_SIGN 6
#define X509_PURPOSE_ANY 7
#define X509_PURPOSE_OCSP_HELPER 8

#define X509_PURPOSE_MIN 1
#define X509_PURPOSE_MAX 8

/* Flags for X509V3_EXT_print() */

#define X509V3_EXT_UNKNOWN_MASK (0xfL << 16)
/* Return error for unknown extensions */
#define X509V3_EXT_DEFAULT 0
/* Print error for unknown extensions */
#define X509V3_EXT_ERROR_UNKNOWN (1L << 16)
/* ASN1 parse unknown extensions */
#define X509V3_EXT_PARSE_UNKNOWN (2L << 16)
/* BIO_dump unknown extensions */
#define X509V3_EXT_DUMP_UNKNOWN (3L << 16)

/* Flags for X509V3_add1_i2d */

#define X509V3_ADD_OP_MASK 0xfL
#define X509V3_ADD_DEFAULT 0L
#define X509V3_ADD_APPEND 1L
#define X509V3_ADD_REPLACE 2L
#define X509V3_ADD_REPLACE_EXISTING 3L
#define X509V3_ADD_KEEP_EXISTING 4L
#define X509V3_ADD_DELETE 5L
#define X509V3_ADD_SILENT 0x10

DECLARE_STACK_OF(X509_PURPOSE)

DECLARE_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)

DECLARE_ASN1_FUNCTIONS(SXNET)
DECLARE_ASN1_FUNCTIONS(SXNETID)

int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, int userlen);
int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
		       int userlen);
int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *izone, char *user,
			 int userlen);

ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone);
ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone);
ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone);

DECLARE_ASN1_FUNCTIONS(AUTHORITY_KEYID)

DECLARE_ASN1_FUNCTIONS(PKEY_USAGE_PERIOD)

DECLARE_ASN1_FUNCTIONS(GENERAL_NAME)

ASN1_BIT_STRING *v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
				     STACK_OF(CONF_VALUE) * nval);
STACK_OF(CONF_VALUE) * i2v_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
					   ASN1_BIT_STRING *bits,
					   STACK_OF(CONF_VALUE) * extlist);

STACK_OF(CONF_VALUE) * i2v_GENERAL_NAME(X509V3_EXT_METHOD *method,
					GENERAL_NAME *gen,
					STACK_OF(CONF_VALUE) * ret);
int GENERAL_NAME_print(BIO *out, GENERAL_NAME *gen);

DECLARE_ASN1_FUNCTIONS(GENERAL_NAMES)

STACK_OF(CONF_VALUE) * i2v_GENERAL_NAMES(X509V3_EXT_METHOD *method,
					 GENERAL_NAMES *gen,
					 STACK_OF(CONF_VALUE) * extlist);
GENERAL_NAMES *v2i_GENERAL_NAMES(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
				 STACK_OF(CONF_VALUE) * nval);

DECLARE_ASN1_FUNCTIONS(OTHERNAME)
DECLARE_ASN1_FUNCTIONS(EDIPARTYNAME)

char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method, ASN1_OCTET_STRING *ia5);
ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method,
					 X509V3_CTX *ctx, char *str);

DECLARE_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
int i2a_ACCESS_DESCRIPTION(BIO *bp, ACCESS_DESCRIPTION *a);

DECLARE_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
DECLARE_ASN1_FUNCTIONS(POLICYINFO)
DECLARE_ASN1_FUNCTIONS(POLICYQUALINFO)
DECLARE_ASN1_FUNCTIONS(USERNOTICE)
DECLARE_ASN1_FUNCTIONS(NOTICEREF)

DECLARE_ASN1_FUNCTIONS(CRL_DIST_POINTS)
DECLARE_ASN1_FUNCTIONS(DIST_POINT)
DECLARE_ASN1_FUNCTIONS(DIST_POINT_NAME)

DECLARE_ASN1_FUNCTIONS(ACCESS_DESCRIPTION)
DECLARE_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)

DECLARE_ASN1_ITEM(POLICY_MAPPING)
DECLARE_ASN1_ALLOC_FUNCTIONS(POLICY_MAPPING)
DECLARE_ASN1_ITEM(POLICY_MAPPINGS)

DECLARE_ASN1_ITEM(GENERAL_SUBTREE)
DECLARE_ASN1_ALLOC_FUNCTIONS(GENERAL_SUBTREE)

DECLARE_ASN1_ITEM(NAME_CONSTRAINTS)
DECLARE_ASN1_ALLOC_FUNCTIONS(NAME_CONSTRAINTS)

DECLARE_ASN1_ALLOC_FUNCTIONS(POLICY_CONSTRAINTS)
DECLARE_ASN1_ITEM(POLICY_CONSTRAINTS)

#ifdef HEADER_CONF_H
GENERAL_NAME *v2i_GENERAL_NAME(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
			       CONF_VALUE *cnf);
GENERAL_NAME *v2i_GENERAL_NAME_ex(GENERAL_NAME *out, X509V3_EXT_METHOD *method,
				  X509V3_CTX *ctx, CONF_VALUE *cnf, int is_nc);
void X509V3_conf_free(CONF_VALUE *val);

X509_EXTENSION *X509V3_EXT_nconf_nid(CONF *conf, X509V3_CTX *ctx, int ext_nid,
				     char *value);
X509_EXTENSION *X509V3_EXT_nconf(CONF *conf, X509V3_CTX *ctx, char *name,
				 char *value);
int X509V3_EXT_add_nconf_sk(CONF *conf, X509V3_CTX *ctx, char *section,
			    STACK_OF(X509_EXTENSION) * *sk);
int X509V3_EXT_add_nconf(CONF *conf, X509V3_CTX *ctx, char *section,
			 X509 *cert);
int X509V3_EXT_REQ_add_nconf(CONF *conf, X509V3_CTX *ctx, char *section,
			     X509_REQ *req);
int X509V3_EXT_CRL_add_nconf(CONF *conf, X509V3_CTX *ctx, char *section,
			     X509_CRL *crl);

X509_EXTENSION *X509V3_EXT_conf_nid(LHASH *conf, X509V3_CTX *ctx, int ext_nid,
				    char *value);
X509_EXTENSION *X509V3_EXT_conf(LHASH *conf, X509V3_CTX *ctx, char *name,
				char *value);
int X509V3_EXT_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section,
			X509 *cert);
int X509V3_EXT_REQ_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section,
			    X509_REQ *req);
int X509V3_EXT_CRL_add_conf(LHASH *conf, X509V3_CTX *ctx, char *section,
			    X509_CRL *crl);

int X509V3_add_value_bool_nf(char *name, int asn1_bool,
			     STACK_OF(CONF_VALUE) * *extlist);
int X509V3_get_value_bool(CONF_VALUE *value, int *asn1_bool);
int X509V3_get_value_int(CONF_VALUE *value, ASN1_INTEGER **aint);
void X509V3_set_nconf(X509V3_CTX *ctx, CONF *conf);
void X509V3_set_conf_lhash(X509V3_CTX *ctx, LHASH *lhash);
#endif

char *X509V3_get_string(X509V3_CTX *ctx, char *name, char *section);
STACK_OF(CONF_VALUE) * X509V3_get_section(X509V3_CTX *ctx, char *section);
void X509V3_string_free(X509V3_CTX *ctx, char *str);
void X509V3_section_free(X509V3_CTX *ctx, STACK_OF(CONF_VALUE) * section);
void X509V3_set_ctx(X509V3_CTX *ctx, X509 *issuer, X509 *subject, X509_REQ *req,
		    X509_CRL *crl, int flags);

int X509V3_add_value(const char *name, const char *value,
		     STACK_OF(CONF_VALUE) * *extlist);
int X509V3_add_value_uchar(const char *name, const unsigned char *value,
			   STACK_OF(CONF_VALUE) * *extlist);
int X509V3_add_value_bool(const char *name, int asn1_bool,
			  STACK_OF(CONF_VALUE) * *extlist);
int X509V3_add_value_int(const char *name, ASN1_INTEGER *aint,
			 STACK_OF(CONF_VALUE) * *extlist);
char *i2s_ASN1_INTEGER(X509V3_EXT_METHOD *meth, ASN1_INTEGER *aint);
ASN1_INTEGER *s2i_ASN1_INTEGER(X509V3_EXT_METHOD *meth, char *value);
char *i2s_ASN1_ENUMERATED(X509V3_EXT_METHOD *meth, ASN1_ENUMERATED *aint);
char *i2s_ASN1_ENUMERATED_TABLE(X509V3_EXT_METHOD *meth, ASN1_ENUMERATED *aint);
int X509V3_EXT_add(X509V3_EXT_METHOD *ext);
int X509V3_EXT_add_list(X509V3_EXT_METHOD *extlist);
int X509V3_EXT_add_alias(int nid_to, int nid_from);
void X509V3_EXT_cleanup(void);

X509V3_EXT_METHOD *X509V3_EXT_get(X509_EXTENSION *ext);
X509V3_EXT_METHOD *X509V3_EXT_get_nid(int nid);
int X509V3_add_standard_extensions(void);
STACK_OF(CONF_VALUE) * X509V3_parse_list(const char *line);
void *X509V3_EXT_d2i(X509_EXTENSION *ext);
void *X509V3_get_d2i(STACK_OF(X509_EXTENSION) * x, int nid, int *crit,
		     int *idx);

X509_EXTENSION *X509V3_EXT_i2d(int ext_nid, int crit, void *ext_struc);
int X509V3_add1_i2d(STACK_OF(X509_EXTENSION) * *x, int nid, void *value,
		    int crit, unsigned long flags);

char *hex_to_string(unsigned char *buffer, long len);
unsigned char *string_to_hex(char *str, long *len);
int name_cmp(const char *name, const char *cmp);

void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) * val, int indent,
			int ml);
int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
		     int indent);
//int X509V3_EXT_print_fp(FILE *out, X509_EXTENSION *ext, int flag, int indent);

int X509V3_extensions_print(BIO *out, char *title,
			    STACK_OF(X509_EXTENSION) * exts, unsigned long flag,
			    int indent);

int X509_check_ca(X509 *x);
int X509_check_purpose(X509 *x, int id, int ca);
int X509_supported_extension(X509_EXTENSION *ex);
int X509_PURPOSE_set(int *p, int purpose);
int X509_check_issued(X509 *issuer, X509 *subject);
int X509_PURPOSE_get_count(void);
X509_PURPOSE *X509_PURPOSE_get0(int idx);
int X509_PURPOSE_get_by_sname(char *sname);
int X509_PURPOSE_get_by_id(int id);
int X509_PURPOSE_add(int id, int trust, int flags,
		     int (*ck)(const X509_PURPOSE *, const X509 *, int),
		     char *name, char *sname, void *arg);
char *X509_PURPOSE_get0_name(X509_PURPOSE *xp);
char *X509_PURPOSE_get0_sname(X509_PURPOSE *xp);
int X509_PURPOSE_get_trust(X509_PURPOSE *xp);
void X509_PURPOSE_cleanup(void);
int X509_PURPOSE_get_id(X509_PURPOSE *);

STACK *X509_get1_email(X509 *x);
STACK *X509_REQ_get1_email(X509_REQ *x);
void X509_email_free(STACK *sk);
STACK *X509_get1_ocsp(X509 *x);

ASN1_OCTET_STRING *a2i_IPADDRESS(const char *ipasc);
ASN1_OCTET_STRING *a2i_IPADDRESS_NC(const char *ipasc);
int a2i_ipadd(unsigned char *ipout, const char *ipasc);
int X509V3_NAME_from_section(X509_NAME *nm, STACK_OF(CONF_VALUE) * dn_sk,
			     unsigned long chtype);

void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent);

#ifndef OPENSSL_NO_RFC3779

typedef struct ASRange_st {
	ASN1_INTEGER *min, *max;
} ASRange;

#define ASIdOrRange_id 0
#define ASIdOrRange_range 1

typedef struct ASIdOrRange_st {
	int type;
	union {
		ASN1_INTEGER *id;
		ASRange *range;
	} u;
} ASIdOrRange;

typedef STACK_OF(ASIdOrRange) ASIdOrRanges;
DECLARE_STACK_OF(ASIdOrRange)

#define ASIdentifierChoice_inherit 0
#define ASIdentifierChoice_asIdsOrRanges 1

typedef struct ASIdentifierChoice_st {
	int type;
	union {
		ASN1_NULL *inherit;
		ASIdOrRanges *asIdsOrRanges;
	} u;
} ASIdentifierChoice;

typedef struct ASIdentifiers_st {
	ASIdentifierChoice *asnum, *rdi;
} ASIdentifiers;

DECLARE_ASN1_FUNCTIONS(ASRange)
DECLARE_ASN1_FUNCTIONS(ASIdOrRange)
DECLARE_ASN1_FUNCTIONS(ASIdentifierChoice)
DECLARE_ASN1_FUNCTIONS(ASIdentifiers)

typedef struct IPAddressRange_st {
	ASN1_BIT_STRING *min, *max;
} IPAddressRange;

#define IPAddressOrRange_addressPrefix 0
#define IPAddressOrRange_addressRange 1

typedef struct IPAddressOrRange_st {
	int type;
	union {
		ASN1_BIT_STRING *addressPrefix;
		IPAddressRange *addressRange;
	} u;
} IPAddressOrRange;

typedef STACK_OF(IPAddressOrRange) IPAddressOrRanges;
DECLARE_STACK_OF(IPAddressOrRange)

#define IPAddressChoice_inherit 0
#define IPAddressChoice_addressesOrRanges 1

typedef struct IPAddressChoice_st {
	int type;
	union {
		ASN1_NULL *inherit;
		IPAddressOrRanges *addressesOrRanges;
	} u;
} IPAddressChoice;

typedef struct IPAddressFamily_st {
	ASN1_OCTET_STRING *addressFamily;
	IPAddressChoice *ipAddressChoice;
} IPAddressFamily;

typedef STACK_OF(IPAddressFamily) IPAddrBlocks;
DECLARE_STACK_OF(IPAddressFamily)

DECLARE_ASN1_FUNCTIONS(IPAddressRange)
DECLARE_ASN1_FUNCTIONS(IPAddressOrRange)
DECLARE_ASN1_FUNCTIONS(IPAddressChoice)
DECLARE_ASN1_FUNCTIONS(IPAddressFamily)

/*
 * API tag for elements of the ASIdentifer SEQUENCE.
 */
#define V3_ASID_ASNUM 0
#define V3_ASID_RDI 1

/*
 * AFI values, assigned by IANA.  It'd be nice to make the AFI
 * handling code totally generic, but there are too many little things
 * that would need to be defined for other address families for it to
 * be worth the trouble.
 */
#define IANA_AFI_IPV4 1
#define IANA_AFI_IPV6 2

/*
 * Utilities to construct and extract values from RFC3779 extensions,
 * since some of the encodings (particularly for IP address prefixes
 * and ranges) are a bit tedious to work with directly.
 */
int v3_asid_add_inherit(ASIdentifiers *asid, int which);
int v3_asid_add_id_or_range(ASIdentifiers *asid, int which, ASN1_INTEGER *min,
			    ASN1_INTEGER *max);
int v3_addr_add_inherit(IPAddrBlocks *addr, const unsigned afi,
			const unsigned *safi);
int v3_addr_add_prefix(IPAddrBlocks *addr, const unsigned afi,
		       const unsigned *safi, unsigned char *a,
		       const int prefixlen);
int v3_addr_add_range(IPAddrBlocks *addr, const unsigned afi,
		      const unsigned *safi, unsigned char *min,
		      unsigned char *max);
unsigned v3_addr_get_afi(const IPAddressFamily *f);
int v3_addr_get_range(IPAddressOrRange *aor, const unsigned afi,
		      unsigned char *min, unsigned char *max, const int length);

/*
 * Canonical forms.
 */
int v3_asid_is_canonical(ASIdentifiers *asid);
int v3_addr_is_canonical(IPAddrBlocks *addr);
int v3_asid_canonize(ASIdentifiers *asid);
int v3_addr_canonize(IPAddrBlocks *addr);

/*
 * Tests for inheritance and containment.
 */
int v3_asid_inherits(ASIdentifiers *asid);
int v3_addr_inherits(IPAddrBlocks *addr);
int v3_asid_subset(ASIdentifiers *a, ASIdentifiers *b);
int v3_addr_subset(IPAddrBlocks *a, IPAddrBlocks *b);

/*
 * Check whether RFC 3779 extensions nest properly in chains.
 */
int v3_asid_validate_path(X509_STORE_CTX *);
int v3_addr_validate_path(X509_STORE_CTX *);
int v3_asid_validate_resource_set(STACK_OF(X509) * chain, ASIdentifiers *ext,
				  int allow_inheritance);
int v3_addr_validate_resource_set(STACK_OF(X509) * chain, IPAddrBlocks *ext,
				  int allow_inheritance);

#endif /* OPENSSL_NO_RFC3779 */

/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
 * made after this point may be overwritten when the script is next run.
 */
void ERR_load_X509V3_strings(void);

/* Error codes for the X509V3 functions. */

/* Function codes. */
#define X509V3_F_ASIDENTIFIERCHOICE_CANONIZE 156
#define X509V3_F_ASIDENTIFIERCHOICE_IS_CANONICAL 157
#define X509V3_F_COPY_EMAIL 122
#define X509V3_F_COPY_ISSUER 123
#define X509V3_F_DO_DIRNAME 144
#define X509V3_F_DO_EXT_CONF 124
#define X509V3_F_DO_EXT_I2D 135
#define X509V3_F_DO_EXT_NCONF 151
#define X509V3_F_DO_I2V_NAME_CONSTRAINTS 148
#define X509V3_F_HEX_TO_STRING 111
#define X509V3_F_I2S_ASN1_ENUMERATED 121
#define X509V3_F_I2S_ASN1_IA5STRING 149
#define X509V3_F_I2S_ASN1_INTEGER 120
#define X509V3_F_I2V_AUTHORITY_INFO_ACCESS 138
#define X509V3_F_NOTICE_SECTION 132
#define X509V3_F_NREF_NOS 133
#define X509V3_F_POLICY_SECTION 131
#define X509V3_F_PROCESS_PCI_VALUE 150
#define X509V3_F_R2I_CERTPOL 130
#define X509V3_F_R2I_PCI 155
#define X509V3_F_S2I_ASN1_IA5STRING 100
#define X509V3_F_S2I_ASN1_INTEGER 108
#define X509V3_F_S2I_ASN1_OCTET_STRING 112
#define X509V3_F_S2I_ASN1_SKEY_ID 114
#define X509V3_F_S2I_SKEY_ID 115
#define X509V3_F_STRING_TO_HEX 113
#define X509V3_F_SXNET_ADD_ID_ASC 125
#define X509V3_F_SXNET_ADD_ID_INTEGER 126
#define X509V3_F_SXNET_ADD_ID_ULONG 127
#define X509V3_F_SXNET_GET_ID_ASC 128
#define X509V3_F_SXNET_GET_ID_ULONG 129
#define X509V3_F_V2I_ASIDENTIFIERS 158
#define X509V3_F_V2I_ASN1_BIT_STRING 101
#define X509V3_F_V2I_AUTHORITY_INFO_ACCESS 139
#define X509V3_F_V2I_AUTHORITY_KEYID 119
#define X509V3_F_V2I_BASIC_CONSTRAINTS 102
#define X509V3_F_V2I_CRLD 134
#define X509V3_F_V2I_EXTENDED_KEY_USAGE 103
#define X509V3_F_V2I_GENERAL_NAMES 118
#define X509V3_F_V2I_GENERAL_NAME_EX 117
#define X509V3_F_V2I_IPADDRBLOCKS 159
#define X509V3_F_V2I_ISSUER_ALT 153
#define X509V3_F_V2I_NAME_CONSTRAINTS 147
#define X509V3_F_V2I_POLICY_CONSTRAINTS 146
#define X509V3_F_V2I_POLICY_MAPPINGS 145
#define X509V3_F_V2I_SUBJECT_ALT 154
#define X509V3_F_V3_ADDR_VALIDATE_PATH_INTERNAL 160
#define X509V3_F_V3_GENERIC_EXTENSION 116
#define X509V3_F_X509V3_ADD1_I2D 140
#define X509V3_F_X509V3_ADD_VALUE 105
#define X509V3_F_X509V3_EXT_ADD 104
#define X509V3_F_X509V3_EXT_ADD_ALIAS 106
#define X509V3_F_X509V3_EXT_CONF 107
#define X509V3_F_X509V3_EXT_I2D 136
#define X509V3_F_X509V3_EXT_NCONF 152
#define X509V3_F_X509V3_GET_SECTION 142
#define X509V3_F_X509V3_GET_STRING 143
#define X509V3_F_X509V3_GET_VALUE_BOOL 110
#define X509V3_F_X509V3_PARSE_LIST 109
#define X509V3_F_X509_PURPOSE_ADD 137
#define X509V3_F_X509_PURPOSE_SET 141

/* Reason codes. */
#define X509V3_R_BAD_IP_ADDRESS 118
#define X509V3_R_BAD_OBJECT 119
#define X509V3_R_BN_DEC2BN_ERROR 100
#define X509V3_R_BN_TO_ASN1_INTEGER_ERROR 101
#define X509V3_R_DIRNAME_ERROR 149
#define X509V3_R_DUPLICATE_ZONE_ID 133
#define X509V3_R_ERROR_CONVERTING_ZONE 131
#define X509V3_R_ERROR_CREATING_EXTENSION 144
#define X509V3_R_ERROR_IN_EXTENSION 128
#define X509V3_R_EXPECTED_A_SECTION_NAME 137
#define X509V3_R_EXTENSION_EXISTS 145
#define X509V3_R_EXTENSION_NAME_ERROR 115
#define X509V3_R_EXTENSION_NOT_FOUND 102
#define X509V3_R_EXTENSION_SETTING_NOT_SUPPORTED 103
#define X509V3_R_EXTENSION_VALUE_ERROR 116
#define X509V3_R_ILLEGAL_EMPTY_EXTENSION 151
#define X509V3_R_ILLEGAL_HEX_DIGIT 113
#define X509V3_R_INCORRECT_POLICY_SYNTAX_TAG 152
#define X509V3_R_INVALID_ASNUMBER 160
#define X509V3_R_INVALID_ASRANGE 161
#define X509V3_R_INVALID_BOOLEAN_STRING 104
#define X509V3_R_INVALID_EXTENSION_STRING 105
#define X509V3_R_INVALID_INHERITANCE 162
#define X509V3_R_INVALID_IPADDRESS 163
#define X509V3_R_INVALID_NAME 106
#define X509V3_R_INVALID_NULL_ARGUMENT 107
#define X509V3_R_INVALID_NULL_NAME 108
#define X509V3_R_INVALID_NULL_VALUE 109
#define X509V3_R_INVALID_NUMBER 140
#define X509V3_R_INVALID_NUMBERS 141
#define X509V3_R_INVALID_OBJECT_IDENTIFIER 110
#define X509V3_R_INVALID_OPTION 138
#define X509V3_R_INVALID_POLICY_IDENTIFIER 134
#define X509V3_R_INVALID_PROXY_POLICY_SETTING 153
#define X509V3_R_INVALID_PURPOSE 146
#define X509V3_R_INVALID_SAFI 164
#define X509V3_R_INVALID_SECTION 135
#define X509V3_R_INVALID_SYNTAX 143
#define X509V3_R_ISSUER_DECODE_ERROR 126
#define X509V3_R_MISSING_VALUE 124
#define X509V3_R_NEED_ORGANIZATION_AND_NUMBERS 142
#define X509V3_R_NO_CONFIG_DATABASE 136
#define X509V3_R_NO_ISSUER_CERTIFICATE 121
#define X509V3_R_NO_ISSUER_DETAILS 127
#define X509V3_R_NO_POLICY_IDENTIFIER 139
#define X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED 154
#define X509V3_R_NO_PUBLIC_KEY 114
#define X509V3_R_NO_SUBJECT_DETAILS 125
#define X509V3_R_ODD_NUMBER_OF_DIGITS 112
#define X509V3_R_OPERATION_NOT_DEFINED 148
#define X509V3_R_OTHERNAME_ERROR 147
#define X509V3_R_POLICY_LANGUAGE_ALREADTY_DEFINED 155
#define X509V3_R_POLICY_PATH_LENGTH 156
#define X509V3_R_POLICY_PATH_LENGTH_ALREADTY_DEFINED 157
#define X509V3_R_POLICY_SYNTAX_NOT_CURRENTLY_SUPPORTED 158
#define X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY 159
#define X509V3_R_SECTION_NOT_FOUND 150
#define X509V3_R_UNABLE_TO_GET_ISSUER_DETAILS 122
#define X509V3_R_UNABLE_TO_GET_ISSUER_KEYID 123
#define X509V3_R_UNKNOWN_BIT_STRING_ARGUMENT 111
#define X509V3_R_UNKNOWN_EXTENSION 129
#define X509V3_R_UNKNOWN_EXTENSION_NAME 130
#define X509V3_R_UNKNOWN_OPTION 120
#define X509V3_R_UNSUPPORTED_OPTION 117
#define X509V3_R_USER_TOO_LONG 132

#ifdef __cplusplus
}
#endif
#endif
